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Emergency line open 24/7

Gas Safe Reg: 123456

Trustpilot 4.9★

CENTRAL HEATING SPECIALISTS — HARROW

Central Heating in Harrow

New central heating systems, extensions to existing systems, and smart control upgrades across Harrow. Fixed price agreed before we start, Gas Safe registered engineers, and a system built to keep every room warm.

HA1

HA2

HA3

HA5

HA7
HA8

Get Your Free Heating Quote

Respond within 2 hours · No call-out charge

🔒 No obligation. Fixed price confirmed before any work starts.


400+

Systems installed in Harrow

1–3

Days for a typical install

4.9★

Trustpilot rating
1,800+ verified reviews

6

Postcode areas covered

£0

Call-out charge
ever, any time

Gas Safe Reg. 123456

Which? Trusted Trader

TrustMark Registered

★ Trustpilot 4.9

£5M Insured

Dual-Qualified Electricians

SOUND FAMILIAR?

Need Central Heating Work in Harrow?

From cold extensions to outdated controls, these are the issues Harrow homeowners bring to us most often.

No Heating in an Extension or Loft

Common in Pinner and Stanmore’s extended family homes — new living space that was never connected to the main system.

Old, Inefficient System

An ageing system in Harrow and Wealdstone’s flats can waste energy and struggle to heat every room evenly.

No Smart Controls

Basic dial thermostats offer no room-by-room control, wasting energy heating rooms you’re not using.

System Never Sized Right

Some properties were fitted with an undersized system from the start, struggling to keep up with demand.

WHAT'S INCLUDED

Our Central Heating Service in Harrow

A complete process, from assessing your existing system to a fully tested, certified installation.

Assess Your System

We assess your existing setup, property layout and heating demand, then agree a fixed price before any work begins.

Design the Layout

Radiator positions, pipe runs and zoning are planned to suit your property, including any new extension or loft space.

Install & Connect

Pipework, radiators and controls installed to specification, connected to your boiler or new system.

Test & Certify

Full system flush and heat-up test, Gas Safe certification where applicable, and a walkthrough of your new controls.

CAPABILITY

Every Type of Heating Project, Handled

From extending an existing system to a full new installation, matched to your Harrow property.

New Central Heating System

A complete system designed and installed from scratch, including boiler, radiators, pipework and controls.

Full new installation

System Extensions

Extending your existing heating into a new extension, loft conversion or previously unheated room.

Common in Pinner & Stanmore homes

Smart Controls & Zoning

Smart thermostats and zone valves fitted to give room-by-room control and reduce wasted energy.

Ideal for energy savings

WHAT YOU GET

What You Get After Installation

A properly designed heating system changes how your whole home feels, every day of the year.

Even Heat Throughout Your Home

Every room, including new extensions and lofts, heated properly rather than as an afterthought.

Lower Energy Bills

A correctly sized, zoned system uses energy more efficiently than an outdated or oversized one.

Room-by-Room Control

Smart controls let you heat only the rooms you're using, when you need them.

Full Gas Safe Certification

Documented proof of a safe, compliant installation, useful for insurance and any future property sale.

TRANSPARENT PRICING

Central Heating Cost in Harrow

Costs vary by property size and scope of work. All prices are fixed and agreed before work starts.

Compact

Flat / Small Property System

1–2 bed flat, new full system

from £3,500

Most Popular

Family Homes

House System Installation

3–4 bed house, new full system

from £5,200

Add-On Work

Extension / Smart Controls

Extending existing system or upgrading controls

from £650

💡 All prices are fixed and agreed before any work begins, based on your property size and the scope of work required. Boiler replacement, where needed alongside a new system, is quoted separately. Book a free assessment for an accurate quote on your project.

WHY CHOOSE US

Why Choose Our Heating Engineers in Harrow

Full System Design, Not Guesswork

Every installation is properly designed for your property's heat demand and layout, not a generic package.

Experience with Family Home Extensions

Familiar with extending heating into extensions and loft conversions common across Pinner and Stanmore.

Clean, Tidy Installation

Floors and work areas protected throughout, with the property left clean and tidy at the end of each day.

Quality Radiators & Controls

We fit reputable radiator and control brands, not the cheapest available parts, for a system that lasts.

4.9★ on Trustpilot

Hundreds of Harrow homeowners have rated our heating installations five stars for quality and communication.

Local to South East London

Your quote is agreed before work starts and doesn't change once the job is underway.

Verified Customer Reviews

What Harrow Customers Say

4.9

Trustpilot

4.9★

Google

4.8★

Which? Trusted Trader

Read all reviews on Trustpilot →

“Our loft conversion in Pinner had no heating at all. Team extended the existing system properly, radiators fitted neatly, works perfectly now.”

Picture of Sarah C.

Sarah C.

Pinner, HA5

✓ Verified

“Full new system installed in our Harrow flat, old setup was hopeless. Zoned properly with a smart thermostat, huge improvement in comfort and bills.”

Picture of Marcus J.

Marcus J.

Harrow, HA1

✓ Verified

“Extended heating into our extension in Stanmore, engineer designed the pipe runs cleanly and it heats evenly with the rest of the house.”

Picture of Patricia O.

Patricia O.

Stanmore, HA7

✓ Verified

FAQs

Central Heating in Harrow — Questions Answered

A new system for a flat starts from £3,500, a full house system from £5,200, and extending an existing system or adding smart controls from £650. Exact pricing depends on property size and scope, and is fixed before work begins.
Yes. We regularly extend existing central heating systems into new extensions and loft conversions, which is a common need across Pinner and Stanmore's larger family homes.
A full system for a flat or small property typically takes 1–2 days. Larger house installations can take 2–3 days depending on the number of radiators and any pipework complexity.
Yes. We install and upgrade central heating across the entire Harrow borough — Harrow, South Harrow, Wealdstone, Pinner, Stanmore and Edgware — postcodes HA1, HA2, HA3, HA5, HA7 and HA8.
Not necessarily. If your existing boiler has sufficient capacity for the new system, it can often be reused. Where a new or larger boiler is needed, this is assessed and quoted separately during your free assessment.
Yes. We fit smart thermostats and zone valves to give you room-by-room control over your heating, helping reduce wasted energy and lower your bills.

Ready to Upgrade Your Heating in Harrow?

Fixed price agreed before we start. Gas Safe registered engineers. Most installations completed in a single day.

Nearby Areas

Central Heating in Nearby London Boroughs

We also cover these neighbouring boroughs — same fixed prices, same-day availability.